Percussion fuse



Dec. 13, 1927. V

K B. PANToFLlcEK PERCUSS ION FUSE Filed Sept. 5, 1924 BOHDAN mmm-11162K INVEMQB z BY Wins ATTORNEY.

Patented Dec. 13, 1927. Y .i

UNiTEn STATES PATENT oFFicE.

BOHDAN PANTOFLIEK, OF PILSEN, CZECHOSLOVAKIA.

PERCUSSION FUSE.

Application filed September 3,'1924, Serial No.' 735,611, and in Czechoslovakia September 11, 1924.

VMy/invention relates to that class of perthis device offers only a slight resistance 55 cussion fuses for projectiles of that class in thereby rendering the fuse very sensitive. which the fuse normally held in inoperative An accidental perforation of the .pellet l is position bysafety devices is released in the prevented by a cover plate Which can be 5v* very last moment of the flight of the pro- PBFOHIGd only by a heavy impact such as j'gctle by forces Set up directly before the Would be exerted. on the striker when the 60 Prjectil hits the target. latter aftei-breaking the safety device is "My invention consists in that the striker t-llIOWn gllnst the pellet when the proJeeis connectedv With a disc hitting on the target. U1? StIlkeS the target. As a consequence of The result of this arrangement is that the US arrangement the cover plate 5 is first stri-ker together With the disc have so small a perforated and then the pellet l. l If by ac- 65 mags that the Safety device may be Compu-1 cident the striker 2 is thrown with insuffitively light. Owing to the small mass ofthe @lent Veloclty against the COVQF Plate 0f striker andthe disc and the relative small the Pelle? l thls .Cover plate Wlu b9 forced resistance of the diaphragm 4 of the safety back together Wlth th? Pellet 1g31-n5-t the device the fuse is rendered extremely sen- Muon O the Sprmg W1th0ut-be1ng lnlu'ed- 70 Sitive 1 By properly selecting the thickness of .the This invention is Villustratively eXempli- Cover Plat@ 5 and the 'Strength Qf. the Sprmg ed in the accompanying drawing in which, 6 any desired amount of sensitiveness and Figure lis alongitudinal sectional view of .Safet of the fils@ may be Obtamed Qn r' a percussion vfuse.` Figure 2 is a similar img t. e Prolectll? the Pe11et-reced9s OWlPg t0 75 view of a slightly modified form of construcmertmompresslilg the -Sprmg 6i and 1f the tion qnd, Fi ures 3 and 4 are Views of Still latter 1s of suicient strength to resist this further modigfications of my invention. pressure 1i' follows 'that the plate 5 must be VIn the annexed drawing four embodiments Oil?) atlgryr gater] tfhlcknes' F.0 of my invention are shown diagrammatically 2 t1 uc l u .n Crm1 S Own m 1c' 80 inaxial'section. In all the figures like Parts in tlepuse b 515g? ,efmllil eeve. 9 moupe Y l is eeve is provi e emarkd Wlth the Same numel als of Tafel yvith inturned tongues 8l holding the pellet Y p u i in its uppermost position. These tongues so 2 $1111; lslste losel are so proportioned that they can Withstjand 85 posed to the direct impact when the proiecthe Stmm puton them 0W1ng.t0 the merma tile hitsthetarget, 4 is the safety device i); ghe pene) ont mrtlg th; rwctll but are .Y oren or en ou War e ore e cover lllslgtledn rlllvetgsgrlgc plate 5 is perforated When the striker strikes hits the tar ets 5 is a cover plate covering agamst the plate Wlth a cqmpilfrat'wfily 10W 90 the pellet atigid can be perforated only When pegt' Ony when the rOJei-Jle siriies the tle prqsetle strikes1 the1 ltajrget dwlefepon tliiryvn ati'lith rlesaquierheinenci aalilnsr tlif t a s ai ze 1S er p j sr rer causes e pe e o e ona e.

Pene'C 1ST Commune@ l? l a Spfmgl mung 0n In the constructional forni shown in Fig. 95 thnpclllt igoiilselte Shdyofnt regusletbe il plltd aptuated by 1the sptringb is L iaeinisinr disc @is rigidly connected. to the striker 2. locking pin 11 Whichilies Illlsd rjloclglng 202i terrestri esta?assai by a 10 by f y n l2.` If desired a transverse pin 13 ina be pellet l is freely guided 1n the fuse lOOdy provided passing through the locking piii 11 so' that the axes of the pellet and of the andl the plug 10. Thus the fuse is 'perfectly Y Striker are in alignment.v The Spllflg' 6 safe. On tiring the projectile first the plug tends to hold the pellet in its uppermost pO- l0 recedes owing to inertia shearing off the sition; The mass of the disc 3 and the transverse pin 13 if used and compressing striker 2 .being comparatively small the 'the spring 12. The locking pin 11 after bevsafety device may be comparatively light so ing released brings the pellet l under the inthat when the proJectile strikes the target fiuence of the spring 6 which forces it to its upper position, -as illustrated in Figure l.

Figure 4 shows thefuse in the safety position vfor manipulation of the fuse.. The pellet I is held in the lowermost position by the tongues 15. Ifrduring loadingof the `weapon or through"inadvertence^theA safety device. 4: is destroyed, neverthelessv the striker 2 cannot reach the pellet and'cannot ydenotate :the .',sameiy But this Ksafeguarding by means of the tongues l5v is released when 4 the Vweapon is fired. y The sleeve 14 is movably mounted in the'fuse bodyf?. Uponfiring,

the sleevelllis hurled backwardly relativelyy to theY fuse Abody 7 and lthe tongues l5 .are bent backV or broken` olf. There-upon the y; pellet 1=co1nes under the influence ofthe i reached the target the position of the pellet spring 6 in the uppermost position as shown in 'Fig-ure l'. When thus the fuse has lis-exactly the sameuas Shownl in Figure jl. `VVhatI claim is. ,f Y l. In a percussion fuse ,he combination v with a fuse body, a striker and a disc fast on such striker, means for` guiding axially the striker and discinfthev fusebody, a safety d e-` vice adapted to holdthe striker and disc4 inthe safe position, a pellet' adapted to cooper-` ate with the striker andmeans for yieldingly supportingthe pellet in the yarmed position, in the direction of lsaid striker the said Y striker and disc being small in mass andthe safety devicebeing light whereby the fuse is rendered very sensitive. l

. 2.In ajpercussion .fuse the'coinbination" with a fuse body, a striker and disc'fast onA such striker, means for guiding axially the fuse body in alignment with the striker` and" meansl for yieldably ysupporting the pelletv striker and discin the fuse'body, a safetyV devioeadapted to hold the striker and discv inthe safe positioinla pellet adapted to 'co-` operate with the striker and movab-le in the in the armed' position,;-inuthe direction" of saidstrikerthe saidl striker and disebeing small in massand they safety device being light wherebythexfuse renderedlvery'sen-I sitive.-

., 3. In a percussion"fusethe combination `with a fusexbody,astrikerand afdisc fast =onsuchy striker, means 'for' guiding A'axially fthe strikerand discinlthe fuse'body, a safety device adapte'dto hold the striker and dise in thesafe position, a'pellet'adapted to cooper-v ate with the striker, a lcover plate vinterposedl between Ythe pellet and the' striker and'means foryieldably supporting :thel pellet inv the armed positiony in -the'di'rection'of said strik!y er', the saidstrikerjandfdisc being small in mass, andthe safety device'bein g 'light'where by the fuse is rendered very sensitive.

4. In Aa percussion fuse lthe-' combination Lwith a fuse body, a striker and afdisc fast on such striker, means forguiding faXially the. striker and-disc inthe fusebody, a safetyde-4 viceadaptedftolioldthe striker and disc'i'n the safe position, a pellet adapted ate with the striker and means for holding yieldingly the pellet in the safe position such means being adapted to operate in one directionunderthe action of inertia on firing and inv theoppositedirectionunder the action of the impact on striking the target, the said i to cooperstrikerv and disc being small in mass and the l, safety device being light whereby thefuse is` rendered very sensitive. f

`5. In axjpereussion fusethehcombination with aflise body, astriker anday 'fastom such strikeigmeans for guiding airiallyy-rthe, striker and disc in the fusebody, ga.,safetyy device adapted, to hold thefstrikei" and' in the safe position, a pellet adapted torfcoe. operate'witli the striker and lmeans for holding yieldingly the pelletfin thesaifeposition' such means consistingfof resilient elementsadapted-to operate-intone directioiiuiiderthe laction of inertiaon tiring aiidintheoppof, site direction under thezactioii` off-thev ijnipafit` on striking the target, the said Vstriker and disc being small in ,massand tfhefsfafetyde-Y; vice beingv light wherebylthe fuse; is' rende dI very sensitive. f ,y ,fp p fuse the combinationV` witha fuse body, av striker anda disc fast ,on

6. In a 'percussion suehstriker, means 4for guiding 4axially the y strikerand disc in thefusebody, a safetyzde-v,r vice adaptedI to hold the strikeiand disfcf'in the safe position, a pellet adapted.- to. cooperl ate with the strikervvandmeansfor holding yieidingiy the" 'pena inv the 'Safe ,postino-11,?

such means comprising a guide sleevefortle pellet and inturned resilient tongues teni-t porarily supporting the pellet and adapted* i to operatefinfone direction undergtlie 'action of inertia lon iiring and in the oppositediff rection under theaction of the .impact-,on

striking the target, the said striker'a'nd "dise adaptedf to normally hold thezpellet away from Vthe striker and to release the pellet 011vv liring and resilient means for moving :the

pellet when so released towardsthestrikeri whereby the 'pellet vis broughtV into the 'path` of the striker, the said striker and. disc being,

small in mass and the: safety device-.being light ,whereby ,the fuse is renderedffvery. sen-v sitive.l f1

8. In'a percussion fuse the combinations. with a fuse body, a striker and a disey fast one such striker, means for guiding'axially the igt turned tongues normally holding the pellet away from the striker and a spring holding the pellet against the said tongues, the said 10 striker and dise being small in mass and the safety device being light whereby the fuse is rendered very sensitive.

In testimony whereof I afliX my signature.

ING. BoHDAN PANTOFLICEK. 

